			var b1=document.getElementById('b1');
			var b2=document.getElementById('b2');
			var b3=document.getElementById('b3');
			var b4=document.getElementById('b4');
			var b5=document.getElementById('b5'); 
//onclick事件
			b1.onclick=function(){  
	        		window.location.href="";
	     		}
			b2.onclick=function(){  
	        		window.location.href="";
	     		}
			b3.onclick=function(){  
	        		window.location.href="";
	     		}
			b4.onclick=function(){  
	        		window.location.href="";
	     		}
			b5.onclick=function(){  
	        		window.location.href="";
	     		}
//onmousover事件和onmousout事件			
			b1.onmouseover=function mouseOver()
			{
				this.src ="../../img/gif/001.gif"
			};
			b1.onmouseout=function mouseOut()
			{
				this.src ="../../img/gif/001.gif"
			}
			b2.onmouseover=function mouseOver()
			{
				this.src ="../../img/gif/004.gif"
			}
			b2.onmouseout=function mouseOut()
			{
				this.src ="../../img/gif/003.gif"
			}
			b3.onmouseover=function mouseOver()
			{
				this.src ="../../img/gif/008.gif"
			}
		 	b3.onmouseout=function mouseOut()
			{
				this.src ="../../img/gif/005.gif"
			}
			b4.onmouseover=function mouseOver()
			{
				this.src ="../../img/gif/006.gif"
			}
			b4.onmouseout=function mouseOut()
			{
				this.src ="../../img/gif/011.gif"
			}
			b5.onmouseover=function mouseOver()
			{
				this.src ="../../img/gif/004.gif"
			}
			b5.onmouseout=function mouseOut()
			{
				this.src ="../../img/gif/011.gif"
			}
		function play_click(sef,url){ 
			var div = document.getElementById('div1'); 
			div.innerHTML = '<embed src="'+url+'" loop="false" autostart="true" hidden="true" autostart="false" starttime="00:02" volume="1"></embed>'; 
			var emb = document.getElementsByTagName('EMBED')[0];
		}